No special computer skills, I simply followed the instructions: plug the small module to the IDE port of the hard drive, connect the 2 power outlets (which required a small extension 1 male, 2 females) . The hard disk is recognized immediately (Vista or XP) and above all immediately accessible and usable files. In short, no problem. Only caution (according the manual): check the jumper and the BIOS setting (correct original in my case).